build: Add fuzzer using AFL

1 files changed, 46 insertions, 0 deletions

diff --git a/build/fuzz/run-afl.sh b/build/fuzz/run-afl.sh
new file mode 100755
index 0000000..95c6c43
--- /dev/null
+++ b/build/fuzz/run-afl.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+# Copyright (C) 2017 Red Hat, Inc.
+#
+# This file is part of GnuTLS.
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+srcdir="${srcdir:-.}"
+export LD_LIBRARY_PATH=${srcdir}/../../lib/.libs/
+
+cat ${srcdir}/../../config.log|grep afl-gcc >/dev/null 2>&1
+if test $? != 0;then
+	echo "compile first library as:"
+	echo "CC=afl-gcc ./configure"
+	exit 1
+fi
+
+if test -z "$1";then
+	echo "Usage: $0 test-case"
+	echo "Example: $0 gnutls_x509_parser_fuzzer"
+	exit 1
+fi
+
+rm -f $1
+CFLAGS="-g -O2" CC=afl-gcc make $1 || exit 1
+
+TEST=$(echo $1|sed s/_fuzzer//)
+
+TMPOUT=${TEST}.$$.out
+mkdir -p ${TMPOUT}
+afl-fuzz -i ${TEST}.in -o ${TMPOUT} -- ./${TEST}_fuzzer
+
+echo "output was stored in $TMPOUT"
+
+exit 0